Shipping and brake mechanism for looms.



P. A. WHITMORE. SHIPPING AND BRAKE MECHANISM FOR LOOMS.

APPLIGATION FILED OUT. 28, 1909 1 070,2 1 5, Patented Aug". 12, 1918.

3 SHEETSSHEET 1.

( t/Bowman COLUMBIA PLANOGRAPH 60.. WASHINGTON. D, c.

P. A. WHITMORE. SHIPPING AND BRAKE MECHANISM FOR LOOMS.

APPLICATION FILED 001. 28, 1909.

1 ,070,2 1 5. Patented Aug. 12, 1913.

3 SHEETS-S HEET 3.

COLUMBIA RLANOGRAPH :n .wAsmNn1oN. D. c.

UNITED sTA'rEs PATENT o to.

FRED A. WHITMORE, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CROMIE'TON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

SHIPPING AND BRAKE MECHANISM FOR LOOMS.

To all whom it may concern:

Be it known that I, FRED A. WHITMORE, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Shipping and Brake Mechanism for Looms, of which the following is a specification.

My invention relates to power shipping and brake mechanism for looms, and the object of my invention is to improve upon the power shipping and brake mechanism of looms, as ordinarily made, and to provide a power shipping and brake mechanism which are connected together and simultaneously operated.

My invention consists in certain novel features of construction of my improvements as will be hereinafter fully described.

I have only shown in the drawings detached parts of a power shipping and brake mechanism for looms, with my improvements combined therewith, suflicient to enable those skilled in the art to understand the construction and operation thereof.

Referring to the drawings :Figure 1 is a plan view of a detached portion of my improvements in power shipping and brake mechanism, looking in the direction of arrow a, Fig. 2; some of the parts are shown in section. Fig. 2 is a front View of the parts shown in Fig. 1, looking in the direction of arrow 6, same figure; also showing the shipper rod not shown in Fig. 1. Fig. 3 is a section, on line 3, 3, Fig. 2, looking in the direction of arrow 0, same figure, and showing the locking device, detached. Fig. 4 is a section, on line 4, 4, Fig. 5, looking in the direction of arrow (Z, same figure. Fig. 5 is a plan View of the power shipping and brake mechanism shown in Fig. 4, looking in the direction of arrow 6, same figure. Fig. 6 is a side view of the parts shown in Fig. 5, looking in the direction of arrow f, same figure; the stand shown in this figure is partially broken away. Fig. 7 shows some of the parts shown in Fig. 5, in a different position, and, Fig. 8 corresponds to Fi 1, but shows some of the parts in a di erent position.

In the accompanying drawings, 1 is a detached portion of the loom side, 2 is the breast beam, 3 is a stand or bracket secured to the loom side, and having bearings 3, Figs. 5 and 7, (only one bearing is shown Specification of Letters Patent.

Application filed October 28, 1909.

Patented Aug. 12,1913. Serial No. 525,193.

in the drawings), for the main driving shaft 4. The shaft 4 has mounted thereon in the usual way, a friction clutch pulley, not shown, and also a brake wheel 5, shown in Figs. 4 and 6.

All of the above mentioned parts may be of the usual and well known construction.

I will now describe my improvements.

A stud 6, see Figs. 5 and 7, on the stand 3, has loosely mounted thereon the hub 7 of a lever 7; one end of the lever 7 is forked or yoke shape, see Fig. 4, and is adapted to receive between its end 7 the studs or trunnions 8 on a clutch collar 8, which loosely slides on a sleeve 9 on the driving shaft 4, see Fig. 5. The other end of the lever 7 extends toward the front of the loom, see Fig. 1, and has its end slotted at 7', to loosely receive a stud 9 on one end of a longitudinally moving bar 10. The other end of said bar 10 is guided in a recessed portion 11 in a stand 11, which is mounted in the breast beam 2. The bar 10 is provided in this instance with two notches 10, 10", see Fig. 1, which are adapted to receive the end of aspring actuated plunger 12, which acts to lock said bar 10 in two positions, as shown in Figs. 1, and 8.

The plunger 12 is mounted and guided in a cylindrical portion 11 on the stand 11, and has on its engaging end an offset portion, forming two engaging surfaces, as shown in Fig. 3, one to engage the bar 10, and the other to engage the bar 14, to be hereinafter described. A helically coiled expansion spring 13 encircles the stem 12 of the plunger 12, and bears at one end against the collar 12 on said plunger 12, and at its other end against the inner end of the recess within the cylindrical portion 11. The spring 13 acts to yieldingly move and hold the plunger 12 against the bar 10. A second bar 14 is supported and guided above the bar 10, and has secured thereto, on one end, a pin or stud 15. The bar 14 is provided with a side extension 14, the ends of which form a projection to engage the extended tapered end 12 on the plunger 12, see Fig. 3. I The lower end of the stud 15 is adapted to extend into and travel in a slot 10', in the bar 10, see Fig. 1. The upper end of the stud 15 is pivotally connected to one end of a shipper rod or connector 16, see Fig. 2. 7

When the loom is in operation, the parts are in the position shown in Fig. 1. To stop the loom, the lever 7 is moved toward the right in Fig. 1, or in the direction of arrow :0, same figure, through the operation of the shipper rod 16, Fig. 2. The move ment of the shipper rod 16, attached to the stud 15,. moves the bar 14, and through the end oi. the extension 1% on said bar 14L engaging the end 12 on the plunger 12,

moves the offset projection on said plunger out of the notch 16 in the bar 10, the slot 10 in the bar 10 allowing the movement of the stud 15, and the bar 14:, before said stud starts to operate the bar 10. The continued movement of the shipper rod 16, through the stud 15 engaging the end of the slot 10 in the bar 10, will cause said bar 10 to be moved to its eXtreme position to the right, when the offset projection on the plunger 12 will extend into the notch 1.0 at the left in the bar 10, as shown in Fig. 8. This movement of the bar 10, and the lever 7 connected with said bar, will release the driving pulley, and apply the brake shoe to the brake wheel 5,. in the manner to be hereinafter described. The same movement may be communicated to the bar 10 to operate the lever 7, and release the driving pulley, by the movement of a shipper handle 17, through the link 18 and the angle lever 19, which is pivotally mount ed on a stud 19, said angle lever 19 having a slot 19 in its end, into which extends the upper end of the stud 15 in the bar 14, see Figs. 1 and 8.

The upper elongated stud or trunnion 8" on the clutch collar 8, see Figs. 4 and 5, extends into an open end slot 20 in an arm 20, which has its hub 20 loosely mounted on a stud 21 on the stand 3. Extending out from said hub 20 is an arm 20, which is adapted to engage a pin or projection 22' on one end of a bar 22, see Fig. 6. The bar 22 is suitably mounted to have a reciprocating movement, and has a stud 22 on its other end, to which is connected one end of a helically coiled contraction spring 23; the other end of said spring 23 is attached to some stationary part of the loom not shown. The spring 23 acts to move the bar 22 toward the left in Fig. 6, after the arm 20 is moved into the position shown in Fig. 7. On the slide bar 22 is a cam shaped projection 22, see Fig. 6, adapted to move under the roll 24. on the brake shoe 25, and force said brake shoe up against the brake wheel 5, to stop the loom, when the spring 23 acts to move the slide bar 22 to the left in Fig. 6.

In order to release the brake shoe 25, while the lever 20 remains in the position shown in Fig. 7 to allow the loom to be turned over by hand, I provide a supple mental hand-releasing lever 26, which is pivotally mounted on a stud 26, and connected by a link 2'? with the stud 22 on the slide bar 22, see Figs. 5 and 7. On the lever 26 is a spring actuated plunger 28, which is encircled by a helically coiled expansion spring 29, which bears at one end against a recess in the lever 26, and is attached at its other end to a collar 28 on the plunger 28. The spring-actuated plunger 28 acts in connection with a projection 30 on the hub 20 of the arm 20, and the outward movement of the lever 26 moves the engaging. end of the plunger 28 by the projection 30, and holds said lever 26, and through link 27, the slide bar 22 in the position shown in Fig. 7 against the action of the spring 23.

Through the movement outward of the lever 26 in the position shown in Fig. 7, the slide bar 22 is moved, to cause the cam shaped incline 22 thereon to pass from under the roll 24 on the brake shoe 25, see Fig. 6, to allow the brake shoe to be moved out of engagement with the brake wheel 5, and allow the loom to be turned over by hand. After the 100m has been turned over by hand, and it is desired to apply the brake shoe 25 to the brake wheel, the shipping rod 16 is moved slightly, and through the rod 10, and lever 7, the lever 20 and lever 20 are moved suliiciently to allow the projection 30 on the lever 20 to be disengaged from the plunger 28* on the lever 26, as shown in Fig. 5,. to release the hand lever 26, the spring 23, will then act to draw the bar 22 to the left in Fig. 6, and cause the cam shaped ex 100 tension 22 thereon to pass under the roll 24, to move the brake shoe 25 into engagement with the brakewheel 5. The stud 22 on the slide bar 22, through the action of the spring 23, will move up the lever 20 to 105 the position shown in Fig. 7 the hand lever 26 being free to be moved from the position shown in Fig. 7 to the position shown in Fig. 5. When it is desired to start the loom, the shipper rod 16 is moved in the opposite 110 direction, to apply the power, and through the bar 10, lever 7, lever 20, and lever 20, the sliding bar 22 ismoved, against the action of the spring 23, to draw the cam shaped extension 22 from under the roll 115 24, to release the brake shoe.

The advantages of my improvements in shipping and brake mechanism for looms, will be readily appreciated by those skilled in the art; they are of simple construction, 120 and can be applied to looms of ordinary construction.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a loom, the combination with a power shipper, and with a brake mechanism, 130

of a shipper device, a sliding bar having engaging surfaces, and connections intermediate said shipper device and said sliding bar, and a second bar having engaging notches, a spring actuated plunger, adapted to be moved by said engaging surfaces and having a projection thereon, adapted to engage said notches, to hold said second mentioned bar, and connections intermediate said last mentioned bar and said power shipper and brake mechanism.

2. In a loom, the combination with a power shipper and with a brake mechanism, of a shipper device, a sliding bar having engaging surfaces, and connections intermediate said shipper device and said sliding bar, and a second bar having engaging notches, a spring actuated pliuiger adapted to be moved by said engaging surfaces and having a projection thereon, adapted to engage said notches, to hold said second mentioned bar, and connections intermediate said last mentioned bar and said power shipper and brake mechanism, and a supplemental mechanism to release the brake mechanism, independently of the power shipping and brake mechanism.

3. In a loom, the combination with a power shipper, and with a brake mechanism, of a shipper device, and a sliding bar having engaging surfaces, and connections intermediate said shipper device and said sliding bar, and a second bar having engaging notches, and a spring actuated plunger adapted to be moved by said engaging surfaces, and having a projection thereon adapted to engage said notches, to hold said second mentioned bar, and connections intermediate said last mentioned bar and said power shipper and brake mechanism, and a supplemental mechanism to release the brake mechanism, independently of the power shipping and brake mechanism, said supplemental mechanism consisting of a handoperated lever, a slide or bar for operating the brake mechanism, and connections intermediate said hand-operated lever and said slide or bar, and a spring actuated plunger on said hand-operated lever, to engage a stop on a lever forming a part of the power shipping and brake mechanism, and said last mentioned lever.

FRED A. WVHITMORE; Witnesses:

Row. G. FOSTER, WILLIAM B. PHELPS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

